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发明名称
Improvements relating to electrical computing instruments
摘要
申请公布号
GB620867(A)
申请公布日期
1949.03.31
申请号
GB19470002598
申请日期
1947.01.28
申请人
FERRANTI LIMITED;DONALD FERGUSON WALKER
发明人
分类号
G06G7/16
主分类号
G06G7/16
代理机构
代理人
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